Home / 13,181.37-19,779.36-5,395.65

Finding the Fourth Proportional to 13,181.37, 19,779.36 and 5,395.65

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Solution

The fourth proportional to 13,181.37, 19,779.36 and 5,395.65 is: 8,096.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.37 : 19,779.36 = 5,395.65 : x
  2. Step 2: Convert to fraction form
    13,181.37/19,779.36 = 5,395.65/x
  3. Step 3: Cross multiply
    13,181.37x = 19,779.36 × 5,395.65
  4. Step 4: Simplify right side
    13,181.37x = 106,722,503.78
  5. Step 5: Solve for x
    x = 106,722,503.78/13,181.37
  6. Step 6: Final answer
    x = 8,096.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.